.header {
    position: fixed;
    top: 0;
    margin: 0 auto;
    width: 100%;
    height: 58px;
}
 .header .nav{
    width: 90%;
    height: 58px;
}
.header .nav .logo {
    width: 137px;
    height: 43px;
    margin: 10px 5px;
    background-size: auto 38px;
}
.header .nav ul li a{
    line-height: 58px;
}
/* 中间 */
.page .section{
    width: 750px;
    
}
.page .section .set{
    background:none;
    padding: 10px;
    width: 100%;

}
.page .section .contact-msg .msg .msg1{
    width: 100%;
}
.page .section .contact-msg .msg .msg1 input{
    width: 92%;
}
.footer{
    width: 100%;
    height: 100px;
}